Note: Descriptions are shown in the official language in which they were submitted.
WO 2023/069044
PCT/TR2022/050868
AN OVEN
Technical Field
The present invention relates to an oven which has two doors connected side by
side with hinges on the user-facing surface of a body in a way that can be
rotated
about the vertical axis and includes a movement mechanism that enables the
said
doors to be opened simultaneously.
Prior Art
The oven doors in the state of the art are generally opened from top to bottom
by
rotating around an axis parallel to the ground plane. This said door is pulled
outwards by being held from the upper side, and it comes to the fully open
position by turning on the horizontal rotation axis located at the lower edge.
In
case the kitchen is narrow or the space to put the oven is small, the space
occupied
by the fully open door may pose a problem for the user. In cases where the
oven
door is fully open, it is very difficult for the user to reach the cooking
volume
inside the door. In order to solve the problem of opening the door on an axis
parallel to the ground plane, nowadays there are single-door or double-door
ovens
that open perpendicular to the ground plane. The doors in the said ovens can
work
synchronously with respect to each other, so when the user opens one door of
the
oven with one hand, the other door can be opened synchronously and with the
other hand, the user can place the food to be cooked in the oven. The biggest
technical problem in this type of synchronous doors is that the said doors
cannot
provide sealing and do not fit properly.
In the United States patent application document No. US2015137675, which is in
the state of the art, a rotary-mounted double-door oven is disclosed. The pair
of
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doors are connected by a coupling assembly so that the doors open and close
simultaneously. The coupling assembly includes a spur gear engaged with
another
gear of the coupling assembly. The spur gear can prevent unwanted rotation of
the
door pair or press the door pair against a gasket.
A double-door oven is disclosed in the United States patent application
document
No. US2014283811, which is found in the state of the art. A pair of sprockets
or
gear, a pair of chains and a pair of connection components connect the doors
to
open and close simultaneously. The oven also includes characteristics to limit
or
eliminate contact between the connection components at a point where the
connection components intersect each other.
Objects of the Invention
The object of the present invention is to realize an oven whose doors are
adapted
to be opened synchronously.
Another object of the present invention is to realize a sealing oven.
Another object of the present invention is to realize an oven comprising an
oven
door that can remain stationary as long as no force is applied in its opened
position.
Brief Description of the Invention
The oven as defined in the first claim and other claims depending on this
claim,
realized in order to achieve the aim of the present invention, consists of at
least
one main body and two doors. These doors can be opened and closed
synchronously. While the doors maintain their position in the fully closed
state by
means of a flexible element and a second stopper, if the user opens the door,
the
door maintains its position in the fully open position by means of a first
stopper.
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In this way, the free movement of the door is prevented, and the possibility
of the
user hitting the door while putting food into the chamber is minimized.
Detailed Description of the Invention
The oven realized to achieve the aim of the present invention is shown in the
attached figures, in which;
Figure 1. is a perspective view of the oven.
Figure 2. is a perspective view of the oven from another angle.
Figure 3. is a perspective view of the oven from another
angle.
Figure 4. is a perspective view of the oven from another
angle.
Figure 5. is a zoomed-in perspective view of the door and
the guide lever.
Figure 6. is a perspective view of the guide levers and the
motion control
group.
Figure 7. is a perspective view of the motion control group.
Figure 8. is an exploded perspective view of the motion
control group, with
the door in open state.
Figure 9. is an exploded perspective view of the motion
control group, with
the door in closed state.
Figure 10. is a perspective view of the motion control group,
with the door in
open state.
Figure 11. is a perspective view of the motion control group,
with the door in
closed state.
The components given in the figures are enumerated individually, and the
meanings of these numbers are given below.
1. Oven
2. Main body
2.1. Chamber
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2.2. Front face
3. Door
3.1. Connection protrusion
4. Guide lever
4.1. Hole
5. Motion control group
5.1. Connection group
5.2. Flexible element
5.3. Positioning plate
5.3.1. Positioning hole
5.4. Stationary body
5.4.1. Channel
5.4.2. First flexible element
5.4.3. First stopper
5.4.4. Second flexible element
5.4.5. Second stopper
5.4.6. Groove
An oven (1) for heating or cooking of food, in its most basic form,
comprising:
- at least one main body (2), which has a chamber (2.1) therein, and the front
face (2.2) of which is adapted to be open, for food to be cooked within the
said
chamber (2.1),
- at least two doors (3) placed on the front face (2.2) found in the main
body (2)
and allowing the chamber (2.1) to be closed, and opened in opposite directions
to each other on a perpendicular axis to the ground plane,
- at least two guide levers (4), which are adapted, when a force is applied
to
open one of the doors (3), to trigger the other door to open synchronously
with
the door (3) on which the force is applied,
- a connection group (5.1) connecting the guide levers (4) to each other,
which
connect the guide levers (4) to each other and when force is applied to a door
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(3) in the opening or closing direction, also trigger the other door (3) to
make
synchronous movement,
= at least one flexible element (5.2), one end of which is mounted to the
connection group (5.1) and the other end to the main body (2), which ensures
sealing by applying force to the doors (3) by means of the guide lever (4) in
the direction of keeping the doors (3) continuously closed,
= at least one positioning plate (5.3) which can move synchronously with
the
connection group (5.1) and guide levers (4) and having a positioning hole
(5.31) thereon to keep the doors (3) in the open position when opened and in
the closed position when closed,
= a motion control group (5) having a stationary body (5.4) comprising a
first
stopper (5.43) mounted on the main body (2), having a channel (5.41) for
allowing the positioning plate (5.3) to move, and that can be placed in the
positioning hole (5.31) to maintain its current position when the doors (3)
are
in the closed position, and a first flexible element (5.42) that exerts
thrusting
force on this first stopper (5.43), and also, a second stopper (5.45) that can
be
inserted into the positioning hole (5.31) to maintain the open position when
the doors (3) are brought to the open position; and a second flexible element
(5.44) that exerts thrusting force on this second stopper (5.45).
The oven (1) in an embodiment of the invention most generally consists of a
main
body (2) and two doors (3). Said oven (1) contains a chamber (2.1) in which
food
is cooked or heated. All sides of the chamber (2.1) are in the closed position
and
only the front side (2.2) is in the open position. The user places the product
from
the front (2.2) into the chamber (2.1) and performs the heating or cooking
process
in this way. Closing the front side (2.2) is accomplished by means of two
doors
(3). Said doors (3) are adapted to rotate around an axis perpendicular to the
ground plane on both sides of the front face (2.2). The doors (3) are fixed to
the
main body (2) by means of hinges at the said axis, and when the user wants to
open the doors (3), the user applies a pulling force and in this way, the
doors (3)
are opened by rotating around the said axis. The synchronous opening and
closing
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of the doors (3) is carried out by means of the guide levers (4) mounted to
the
doors (3) from the connection protrusion (3.1). In the oven (1) according to
this
embodiment of the invention, the guide levers (4) are placed on the lower part
of
the main body (2), and a guide lever (4) is mounted on both doors (3). One end
of
the guide lever (4) is mounted to the connection protrusion (3.1) on the door
(3)
through a hole (4.1), and the other end is mounted to the connection group
(5.1)
located in the motion control group (5). In this embodiment of the invention,
one
guide lever (4) is mounted on each door (3) and the guide levers (4) are moved
to
make the same angle with respect to the central axis of the main body (2). In
this
way, it is ensured that the doors (3) can be opened and closed synchronously.
The synchronous movement of the guide levers (4) connected to the doors (3) in
this embodiment of the invention is carried out by the movement control group
(5). The motion control group (5) basically consists of a connection group
(5.1), a
flexible element (5.2), a positioning plate (5.3) and a stationary body (5.4).
The
connection group (5.1) in the motion control group (5) is the element where
both
guide levers (4) are connected to each other, and when a force is applied to a
door
(3), the guide lever (4) connected to that door (3) transmits this movement to
the
connection group (5.1), and since the other door (3) is mounted on this
connection
group (5.1) on the guide lever (4), both doors move synchronously. There is a
flexible element (5.2) in the motion control group (5) that continuously pulls
the
movement of the connection group (5.1) in one direction. This flexible element
(5.2) in this embodiment of the invention is a spring and applies a continuous
pulling force to the connection group (5.1) and thus forces the doors (3) to
remain
closed continuously. In this way, the doors (3) are fully seated on the front
surface
(2.2) and sealing is ensured. The connection group (5.1) and thus the guide
levers
(4) are moved back and forth smoothly in the direction of the central axis of
the
main body (2) by means of the positioning plate (5.3), which can move back and
forth in the channel (5.41). The positioning plate (5.3) and the connection
group
(5.1) are rigidly connected to each other and both move together. At least one
positioning hole (5.31) is drilled in the positioning plate (5.3). This said
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positioning hole (5.31) is the part ensuring that the doors (3) mounted on the
stationary body (5.4) stay in the preferred position, where the first stopper
(5.43)
and the second stopper (5.45) are fitted. In this way, it is ensured that the
doors (3)
remain in a preferred position.
There is also a stationary body (5.4) in the motion control group (5) included
in
this embodiment of the invention. This stationary body (5.4) is mounted on the
lower part of the main body (2). There is a channel (5.41) in the middle part
of the
stationary body (5.4), and the said channel (5.41) is opened in the stationary
body
(5.4) so that the positioning plate (5.3) can move freely in the direction of
the
central axis of the main body (2). The positioning plate (5.3) and the
connection
group (5.1) can move back and forth in this channel (5.41), and in this way,
smooth movements of the doors (3) both in the opening direction and in the
closing direction are provided. At least two grooves (5.46) are opened in the
channel (5.41) in the stationary body (5.4). While the first flexible element
(5.42)
and the first stopper (5.43) are mounted on one of these grooves (5.46), the
second
flexible element (5.44) and the second stopper (5.45) are mounted on the
other.
Firstly, the first flexible element (5.42) and the second flexible element
(5.44) are
mounted in the grooves (5.46), and then the first stopper (5.43) and the
second
stopper (5.45) are placed. The first flexible element (5.42) and the second
flexible
element (5.44) continuously apply pressure to the first stopper (5.43) and the
second stopper (5.45) in the direction of the positioning plate (5.3). In this
way,
the first stop (5.43) and the second stop (5.45) are squeezed between the
first
flexible element (5.42) and the second flexible element (5.44) and the
positioning
plate (5.3), and when the positioning hole (5.31) and the first stop (5.43) or
the
second stop (5.45) arc aligned, the first stopper (5.43) or the second stopper
(5.45)
slightly enter into the positioning hole (5.31). In this case, the movement of
the
positioning plate (5.3) is restricted and only if the user applies a force to
the door
(3), the said first stopper (5.43) or the second stopper (5.45) comes out of
the
positioning hole (5.31) and the movement of the positioning plate (5.3) is
provided.
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In this embodiment of the invention, the doors (3) in the oven (1) come to the
fully open position from the fully closed position and stay in this position,
as well
as turning from the fully open position to the closed position and stopping in
this
position as follows. When the doors (3) are closed, the positioning plate
(5.3) is in
its initial position. In the said position, the flexible element (5.2) ensures
that the
doors are fully closed and sealed by applying a pulling force, and in
addition, the
first stopper (5.43) is somewhat inserted into the positioning hole (5.31)
(Figure
11). In this way, it is ensured that the doors (3) maintain their position by
means
of both the flexible element (5.2) and the first stopper (5.43). If the user
prefers to
open the door (3), the user applies a force to any door (3) in the opening
direction,
and in this case, the doors (3) start to rotate synchronously around their
rotation
axes. In this case, the positioning plate (5.3) starts to move due to the
force
applied by the user to the door (3) which is more than the force applied by
the
flexible element (5.2) in the pulling direction, and the second stopper (5.45)
fits
into the positioning hole (5.31). (Fig. 10). In the case where the user brings
both
doors (3) to the fully open position by applying force to one of the doors
(3), the
second stopper (5.45) fits into said positioning hole (5.31) and the cut-rent
position
of the door (3) is maintained until the user applies force to the door (3)
again. If it
is preferred to move the door (3) again, the user applies a force to the door
(3)
again, and in this case, the second stopper (5.45) is released from the
positioning
hole (5.31) and the door (3) returns to the closed position through the
pulling
force of the flexible element (5.2).
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